{"id":"AZL-32295","summary":"CVE-2023-51765 affecting package sendmail 8.15.2-46","details":"sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports \u003cLF\u003e.\u003cCR\u003e\u003cLF\u003e but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features.","modified":"2026-04-21T04:26:45.409925Z","published":"2023-12-24T06:15:07Z","upstream":["CVE-2023-51765"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-51765"}],"affected":[{"package":{"name":"sendmail","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/sendmail"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"8.15.2-46"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-32295.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}